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Python Institute PCED-30-02 Exam Syllabus Topics:

Python Institute PCED - Certified Entry-Level Data Analyst with Python Sample Questions:

1. Which task is traditionally or typically performed by a data analyst, and not by a data scientist or analytics specialist? Select the best answer.

A) Creating summary tables and charts to describe patterns in historical data.
B) Developing machine learning algorithms to predict user behavior.
C) Designing a data pipeline to ingest and process real-time sensor data.
D) Recommending pricing strategies using predictive modeling and A/B testing.

2. A Python script includes the expression not False and True. The developer is unsure how logical operators are evaluated in terms of precedence. What will be the final Boolean result of this expression?

A) None
B) True
C) False
D) Error

3. A data analyst exports a cleaned dataset from Python and wants to share it with a colleague for easy use in Excel.
Which file format is best suited for this purpose? Select the best answer.

A) SQL, because it directly converts tabular data into database tables that Excel can open.
B) JSON, because it stores hierarchical data and is designed for visual presentation in Excel.
C) XML, because it automatically preserves spreadsheet formatting and charts.
D) CSV, because it stores tabular data in plain text and is compatible with spreadsheet applications.

4. A script defines a variable x = None and checks its truth value using a conditional statement. The developer wants to understand how Python evaluates None in Boolean contexts. What will bool(x) return?

A) None
B) True
C) False
D) Error

5. A dictionary is defined as d = {"a":1, "b":2}. The programmer accesses d["c"]. What happens when this line executes?

A) Returns 0
B) Raises KeyError
C) Returns None
D) Adds key automatically

Solutions: